Electric-lamp shade



April 21, 1931- L. w. ANDERSEN 1,801,991

ELECTRIC LAMP SHADE Filed March 2, 1929 11 10 INVENTOR Zaurz'fz WAndersen Patented Apr. 21, 1931 antral STATES PATENT. orrics LAURITZ W.ANDERSEN, OF WATERBURY, CONNECTICI TT ELEGTRICrLAMP SHADE Applicationfiled March 2,

This invention relates to electric lamp fixtures, and more particularlyto a shade support having depending clamps for resiliently embracing thesockets of a twin-lamp fixture to permit the shade to be readily rotatedaround the axis of said fixture.

One object of this invention is to provide a shade support of the abovenature which will be simple in construction, inexpensive to manufacture,easy to install and manipulate, compact, ornamental in appearance, andvery efl'icient and durable in use.

With these and other objects in view there has been illustrated on theaccompanying drawings one form in which the invention may beconveniently embodied in practice.

Fig. 1 represents a perspective view, in separated relation, of a shadeholder and a twin-lamp fixture upon which the holder is mounted.

Fig. 2 is a side view of the same showing the lamp shade incross-section.

Referring now to the drawings in which like reference numerals denotecorresponding parts throughout the several views, the numeral 10indicates a hollow supporting base having a two-wire electric conductorcord 11 extending through one side thereof for supplying current to apair of lamps 12 and 13 located in a-pair of threaded sockets 14 and 15extending longitudinally from the body portion 16 of a twin-lampfixture. The body portion 16 has a horizontal tube 17 extendingtherefrom, and said tube 17 is joined by a swiveled connection 18 to avertical tube 19 mounted on said base 10. i

The cord 11 passes up through the base 10, the vertical tube 19, andthen laterally through the horizontal tube 17 into the body portion 16of the twin-lamp fixture where it is connected by the usual bindingposts, not shown, to the central and shell contact terminals 19a and 19bof the sockets 14 and 15. The body portion 16 is provided in its lowersection with the usual switch-operating pull chain 20.

The shade support is preferably made from fiat sheet metal by blankingand bending into the form shown in Fig. 1 and comprises a flat upperbase member 21 having an upwardly 1929. serial No. 343,907.

extending threaded bolt 22 adapted to pass through an opening in the topof a lamp shade 23 of any-desired ornamental configuration. The shank ofsaid bolt forms a post and is adapted to receive an ornamental nut 24for locking the shade upon a washer 24a. The shade 23 has avertical rearedge provided with a slot 25 adapted to embrace the horizontal arm 17 ofthe lamp support. The base member 21 of the shade support is alsoprovided with a pair of oppositely disposed vertical side pins 26 and 27adapted to pass'through a pair of correspondingly located apertures inthe shade 23 whereby said shade will be held at all times in alinementwith the longitudinal axis of the two-lamp fixture.

In order to detachably and movably clamp the shade support to thesockets 14 and 15 of the twin-lamp fixture, the base member 21 has twopairs of longitudinally inclined parallelarms 28, 29, 30,-and' 31 bentdownwardly therefrom, the ends of said arms having outwardly convexgripping sections 32, 33, 34, and 35 adapted to fit aroundthecylindrical sockets 14 and 15. The lower extremities of the grippingsections 32, 33, 34, and

35 are bent outwardly at 36, 37, 38, and 39 so as to facilitate theapplication of the shade holder to the sockets 14 and 15 and its removaltherefrom. This construction also prevents the possibility of scratchingthe surface of the lamp socket.

In operation, in assembling the device, the shade 23 will first beplaced upon its support with the bolt 22 and pins 26 and 27 extending upthrough the corresponding apertures in the shade. The nut 24 will thenbe manually screwed down upon the top of the shade for holding itrigidly against the washer 24a.

The operator will then place the shade hold er above the twin-lampfixture in the position shown in Fig. 1 and will move it in a clownwarddirection untiltheconvex resilient gripping arms 32, 33, 34, and 35 arecaused-to spread apart by the sockets 14 a11d-15, and

it will only be necessary to grasp the shade and rotate it in thedirection desired, the gripping arms 32, 33, 3a and 35 being thus causedto slip over the surface of the sockets 14 and 15.

One advantage of the present invention is that the shade attaching meansis concealed within the shade and has not unsightly arms or brackets onthe exterior thereof.

While there has been disclosed in this specification one form in whichthe invention may be embodied, it is to be understood that this form isshown for the purpose of illustration only, and that the invention isnot to be limited to the specific disclosure but may be modified andembodied in various other forms without departing from its spirit. Inshort, the invention includes all the modifications and embodimentscoming within the scope of the following claims.

Having thus fuily described the invention, what is claimec. as new, andfor which it is desired to secure Letters Patent, is

1. In an electric lamp fixture ior attachment upon a horizontalsupporting member, a twin socket lamp supported by said member, a shadehaving a rear vertical slot embracing said supporting member, a shadeholder having spaced clamps for rotatably engaging the opposed socketsof said twin socket lamp, said slot permitting angular adjustment ofsaid shade about said sockets, and means for detachably securing saidshade upon said shade holder.

2. In an electric lamp fixture for attachment upon a horizontalsupporting member, a twin socket lamp supported by said member a shadehaving a rear slot embracing said supporting member, a shade holderhaving spaced clamps :t'or rotatably engaging the opposed sockets ofsaid twin socket lamp, said slot permitting angular adjustment of saidshade about said socket-s, means for detachably securing said shade uponsaid shade holder, and means for holding said shade in alinement withsaid shade holder.

3. In an electric lamp fixture, a shade, a twin socket lamp, a shadeholder having two pairs of depending resilientjaws for rotatablyclamping upon the opposed sockets of said twin socket lamp, said shadeholder having athreaded post adapted to extend up through said shade, anut on said post for securing said shade to said shade holder, and alateral alining pin projecting from said holderand extending throughsaid shade.

4. In an electric lamp fixture, a shade, atwin socket lamp, a shadeholder having two pairs of depending resilient jaws for rotatablyclamping upon the opposed sockets of said twin socket lamp, said shadeholder having a threaded post adapted to extend up through said shade, anut on said post or securing said shade to said shade holder, and a pairof upwardly extending pins 10-

